Confidence: Medium · Source: FCC ULS · As of 2026-09-10

W0SBG

Active

GRISWOLD, SHANNON B

Location: Parker, CO
Class: Technician
Granted: 2025-07-22
Expires: 2035-07-22
Previous call: KS0SBG
FRN: 0019956564

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Vanity availability

Held

Currently held

W0SBG is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KS0SBGcancelled· T
GRISWOLD, SHANNON BKSgranted 2010-11-30cancelled 2015-06-23
KD0MDQcancelled· T
GRISWOLD, SHANNON BKSgranted 2010-06-21cancelled 2010-11-30

License history

0 events

No recorded events.

More vanity slots coming available

From Colorado

All →

KB7PWB 2026-09-10
KF0RME 2026-09-10
KD0TBG 2026-09-11
KD0TBU 2026-09-11
KD0TBW 2026-09-11

Starting with W0

All →

W0GAB MO · 2026-09-16
W0SCL CO · 2026-09-17
W0DMY KS · 2026-09-20
W0CVF CO · 2026-09-23
W0KLD MO · 2026-09-24

Full history → Vanity availability → Callsign genealogy →